This is documentation for Mathematica 7, which was
based on an earlier version of the Wolfram Language.

# GeoPosition

 GeoPosition[{, }] represents a geodetic position with latitude and longitude . GeoPosition[{, , h}]represents a geodetic position with height h relative to the reference ellipsoid. GeoPosition[{, , h}, datum]represents a geodetic position referring to the specified datum.
• GeoPosition[GeoPosition[...], datum] converts between datums.
• Standard datums can be specified by name.
• Typical named datums include:
 "ITRF00" international Terrestrial Reference Frame 2000 "NAD27" North American Datum of 1927 "NAD83CORS96" North American Datum of 1983 (CORS96)
• The complete list of named datums and reference ellipsoids is given by .
• GeoPosition coordinates are assumed to have a time coordinate equal to the reference epoch date of the datum.
• GeoPosition[{, , h, t}] includes a time, given as a date t in decimal years.
Geodetic position in the default reference frame:
A position that explicitly refers to the ITRF00 reference frame:
Convert this position to NAD 83 (CORS96) coordinates:
Convert to Cartesian geocentric coordinates:
Convert back to geodetic coordinates:
Convert back to ITRF00:
Geodetic position in the default reference frame:
 Out[1]=

A position that explicitly refers to the ITRF00 reference frame:
 Out[1]=
Convert this position to NAD 83 (CORS96) coordinates:
 Out[2]=
Convert to Cartesian geocentric coordinates:
 Out[3]=
Convert back to geodetic coordinates:
 Out[4]=
Convert back to ITRF00:
 Out[5]=
New in 7